Radiator.



SEER?, F CHICAGO, ILLINOIS insmeren.

Speeiceton o' Letters Patent. Patented Feel, 2li, lljl .erinnerst-ien niet?. April 28, 1916. I ,Seria-11h. 94,102.

vfollowing description of my seid invention,

taken in connection with theaecompanying sheet of dren/ing, forms n full, clear, and exact specification, which Willennble others skilled in the nrt to which it epperteins to make and use tile seme.

My invention reletes generally to imprevernents in retiialrs; and it consists, essentially, in the novel and peculiar combinetion of perte. and details of construetion, es hereinafter lirst 'fu'lly set forth and described and then pointed out in the claims.

This invention belongs to the cellular type et ralintors for cooling; the circulating water o1? internal combustion engines.

speed'of flow flue toY vertical heed, thereby maintaining the originel effectiveness of the radiator' for en indelinitel period of time.

To more `i'ully understand the details of my invention, I now lieve reference te the drawings already referred to, in which Figure l is a vertical section of my invention in its entirety. AFig. 2 is e plan cf e fireginent of n strip constituting one of tire units of iny invention. Fig. 3 'plan of :i fragment of a. slightly modified form of strip. Fig. i is un edge vie\v of the part shown in Fig. 2. Fig. 5 is a longitudinal section on line 5 5 of Fig. 2. Fig. o is e trans 7erse section on vline .G--- of Fig. 4 Fig. 7 is a transverse section on line 7-7 ,of Fig. 5. Figs. 8 andi) are sections of modifications of the device.-

Like parts are designated by the saine characters and symbols of reference in all the figures.

A, in the drawings denotes the radiator 'Like 95mm.; of it@ type, the Cooling Sect-,ion `complete, and l, one` of its unit blanks.' lnprop@ of ,hm Even-ifm is built up of a pluasmuch 'as the sever-el units constituting tlic se relity of pliante units; sind its novelty cooling sections oi the rn'diator ere. trne vduresides in ineens providing for large water plicates, I will describe only one oi tnern, and sir spaces; in preventing the clogging and will, therefore, employ the Vsingelnr, ofthe Water passages, and et the same time number. f i in agee-ting" economy of materiel and labor" vThe unit blank l is comprised oi'- a. strip S5 in the fabrication or the seine. in the celluof thin, sheet nietel, Lreferebly brass or ler type et reclietors, in which zig-zeg, sub' copper 011 account of tieir high devree of stentiailyvertieel lofrseegesx are formed beheat Conductivity. 'llie width o?, tween ecl'eeent units, n serions objection is is equal to what is termed the wicltli of the enconntereii, in tiret in these zig-zag pes'- rudi-eter, or in otheruvorlls, the length of 9e 35 sages there are always e plurality yf more the an' passages, and its length is somewhat or less deed Water 'pockets due te the. zig-zug contour oi seici Weter passages. in e. short space of time these Water pockets become @loggen ley precipitated metter from the fie througlrlewing; water, thereby not only greater than the height of' the railietor, (the length ottliew ter pes ges.) Into the fece of this snip there ere presser a plurality' of equally spaced.. snbstnntinlly Yvo tl-shaped,` depressions il). lii depressoon seriously iinpeingtlie effectiveness of sions terminate in n iettenefl pe U., und the rzuiietor, lent in time stopping the down connecting aclJacent successive depressions -Aliow of the wetter. fare like, liattenetl, portions lit, oi the unit While in my structure l employ e mod-iblank B. lt is nonr to be noteci tti-.ttl tlie 1GO fied torni of zigeegrweter passages, l com sides 13, or legs, ,as it vere, forming the ,li- "bine with these passages a. plurality of vershaped depiressiens 10, ere erinngeci` on n tical 'water grooves repeatedly intersecting gentle decline, so that the resultant Genres the Zig-zegpesseges, whereby a. vertical fell lsions are in reality of ollongzitefl l. shape. A

. eiifvvnter et accelerated speed is olotznnedi Along the'nmrgmul edges oi tne blank 13, 10b in These vertical passages 'connect the zigzegll the depressions 10, ere swegeel mxtwnrrllv to passages, 'whereloy the water at high" speed form projections 14, at the peaks i1. 'l rese is eensefl to new nlonethe signage anl to swaged-out portions 19, gmilnelly recede en carry with it the metter preeintated. l an. incline, until the saine finally merge into thus eernbine the ed vnnteges ol' the inthe sides or legs 13, et the flattened portion itin 12, et the base of the depressions. ln tire Y face. of the lJ-shepecl leiressiens ll) ereesefl water cooling surf-ece effected by tlieeig-zag passages with the increased pressed a plurality of preferably semicircular plane grooves 15, which grooves are disposed longitudinally of the lunit blank B, and which merge into the sides 13 of the V- -shaped depressions at a point substantially and 5, with the peaks 11 pointing away from each other, and withthe flattened portions 12 ofthe blank B in register with, and contacting, each other. The free ends of the blank are then bent toward each other and overlapped, as at 16, Fig. and soldered together. It is now to be observed that the point of rebending the blank inthe process of completion 'of a unit, is at the center of the flattened portion 12, so that' when the rebendingis accomplished, the V-shaped depressions are directly opposing each other and in register.

Attention is 'now called to the fact that when the blank is rebent, what was initially a V-shaped depression, becomes an inverted vV-shaped protuberance, and vice versa. AAll members-10 having the projections 14 and grooves 1 5, become protuberances in the 'final analysis, the depressions in the blank being disposed between -adjaent protuberances. The now 'completed unit thus-constitutes a plurality of diamond-shaped membershaving parallel passagesV 17, and these passages extend in the Idirection of the width ol the radiator. The 4said passages .are intermittently contracted by the walls of the grooves 15, so that a contraction of the aircurrent isvcaused to take place in the passages, as the said walls are passed, which air expands beyond the said Walls until the next Wall is encountered. I find that better results are obtained by alternately contracting and speeding the air flow and then slowing it and permitting the same to expand rather than to cause the air to flgw through a smooth, unobstructed passage.

In assembling a radiator, I first take two units and cause them to be nested together, the projections on one unit fitting into the depressions 10 "of the other unit The proljactions 14 of`-one unit contacting with the attened portions 12, of the other unit, causes a slight separation of the body of the two units and creates a zig-zag water passage 18 between the legs or sides of the depressions or protuberances 10, as the`case may be; and, attention. isV drawn to the fact that the faces -or' the receding projecting portions 19l o f the projections 14, contact each other for'the entire length of the units. rlhe marginal' edges of these coacting receding portions 19 are dipped into a bath .of molten solder, thus making the-joint watertight, and thereby closing the mar-g ginal -edges of thelzig-zag water passages against leakage.

The modus ope/muli pursued 1n assembling and joining together the full complement ol units into a radiator section is to nest these units together' in an open metallic frame, similar to a printers chase, and lock the units in proper relationship, after which gthe marginal edges of the entire str ucture are successively dipped into a molten bath and purposes, a unitary structure.

lt has hereinbefore been stated that the water grooves 15 formed in the faces of thc lrespective protuberances extend longitudinally one half of the entire distance between adjacent depressions; 'and it may now be pointed out that the adjacent protuberances are separated by the zig-zag water passages 1S; that the respective water grooves 15 are in true a-linement with each other, and are a constant continuation of each other; they are interrupted and intersected by the zigzag passages at each proturbance of the rcspective units, and therefore, each water groove outlets into its respective portion oi. itscoperating zig-zag passage. By this construction, the down-flow of water is divided between the passages and the grooves. The acceleration in` speed of the water in the grooves, when crossing the zig-zag passages, induces an increase in speed od' How of the water in thepassages, due to suction,

and this increased speed results in the carry ing along ofmatter which would otherwise be precipitated upon the inclined faces of the passages, thereby, almost entirely, eliminating the clo ging of the said-passages.y

In Fig. 3', I gave disclosed a slight modification'o the unit blank B, the modification being characterized by an odd number of water grooves 15, instead of" an even number asin Fig. 2. The object o this construction is clearly shown in Fig. 6, wherein the water grooves 15 te the water grooves 15, so that the throughflowing air in .the air passages 17, is intermittently deflected and caused to alternately impmge against the walls of the water grooves 15 and 15, in a manner readily comprehended.

Afterv the units have been assembled and soldered together, the upper ends ofl the unit structure are soldered,brazed, or sweatcd into a hot water receptacle C, and the lower ends likewise connected to a cooling water receptacle D, of typical construction.

l'n. Figs. 8 and 9, l disclose modified types of construction. In Fig.8, indicate tbc termini l5 of the water grooves 15, as being rounded nfl', to afford a freer outlet of the grooves into the water passages 18. ln Fig. 9, I indicate the said water grooves as of rectangular cross section instead of semicircular. Such, and other changes are well are staggered with respect.

.75 ,of solder and sweated int, for all lntents j noioso@ Within the spirit of my invention, and the scope of the claims.

i have hereinbefore' disclosed the prefer-red mode of ractising my invention, but I reserve the right to make such 'and any changes as might occur to one skilled in the art to which this invention appertains, orto make any and all such alterations as may be permitted under the doctrine of equivalents.

Having thus fully described my invention i ciaimas new, 'and desire to secure to nig/seit by Letters Patent of the United itatesjestantialiy vertical, Water passages between adjacent units, said units having vertical water grooves intersecting said rzig-zag passages.

2. A. radiator, including a plurality of duplicate units, there being zig-zag, substantially verticai, water passages'between adjacent units, water grooves formed in said units, said Water grooves intersectin said passages, said 'units having a plurality of radiator, including a plurality of l 'duplicate units, there being'zig-zag, sub-` f.diiplic'ate units, there being substantially vertical zig-zag Water passages between a jacent umts, said units having Water grooves intersecting said passages, said Water grooves outletting into the respective portions of said passages, said units having a.

plurality of through-Howing air passages, said passages being intermittently contracted by the walls of said water grooves.

5. A radiator, including a plurality of ver-l e vtically disposed, duplicate, nestedtogether,

l1nits,.each of said units comprising a pluralityof tubular protuberances, a plurality l of depressed portions connecting said protuberances`, projections along the marginal edges of said protuberances merging into said depressed portions; said projections of adjacent units nesting into said depressed portions, there being formed between said adjacent units, by said projections, substantially vertical, zig-zag Water passages, there being in adjacent faces of said protuberances vertical Water grooves intersecting and outletting into said water passages.

In testimony that I claim the foregoing as my invention, I have hereunto set my hand.

CHARLES F. SPERY. 

